Adipokines resistin and lipokalin-2 and its role in the pathogenesis of polycystic ovary syndrome and metabolic syndrome
Journal Title: Медичні перспективи - Year 2013, Vol 18, Issue 3
Abstract
Adipose tissues hormones resistin and lipocalin -2 play an important role in the regulation of lipid and carbohydrate metabolism, inflammation and immune disorders, fertility and reproductive mechanisms. Obesity and overweight are significantly involved in the process of fertility decline. Women with obesity and metabolic syndrome have abnormal adypokine plasma levels. The aim of the study was to investigate the relationships between the women’s of the hypothalamic-pituitary-ovarian axis and energy metabolism. Methods: basal levels of resistin, lipocalin-2, follicular stimulating, luteinizing hormones, estradiol, total and free testosterone, dihydrotestosterone, dihydroepiandrosteron sulfate, androstenedione, cortisol, anti-mullerian hormone, prolactin, insulin, folistatin, homocysteine, interleukin-6 and sex-binding globulin were determined in the serum of 35 women of reproductive age with metabolic syndrome (MS), 33 patients of reproductive age with polycystic ovary syndrome (PCOS) and in 54 healthy contols. It is found that despite the normal values of hormones lipocalin-2 and resistin even in patients with obesity, their concentrations significantly correlated with anthropometric, hormonal and metabolic parameters. We established statistically significant stimulatory effects of lipocalin-2 and resistin on the synthesis of ovarian steroids and the significant inhibitory effect of lipocalin-2 and resistin on ovarian and adrenal androgens synthesis in normal physical condition and reproductive health. In MS and PCOS these relationships are not established. The results obtained allow us to propose the assumption of the existence of metabolic changes of the sensitivity of the reproductive system and the adrenal gland to the effects of lipocalin -2 and resistin in women with PCOS and metabolic syndrome.
Authors and Affiliations
N. Voronenko
Keywords
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